CHEM. TEST (reactions, equations)

Question 1

synthesis (definition)

Answer 1

the process where one or more chemical reactions are performed with the aim of converting a reactant

Question 2

decomposition (definiton)

Answer 2

a single compound is broken down into 2 or more simpler substances

Question 3

single replacement (definition)

Answer 3

type of reaction where an element replaces another in a compound

Question 4

double replacement (definition)

Answer 4

2 soluble ionic compounds that react in solution to produce a precipite, a gas, or a molecular formula

Question 5

combustion (definition)

Answer 5

the process of burning something

Question 6

diatoms

Answer 6

hydrogen, nitrogen, oxygen, flourine, chlorine, bromine, iodine, astentine

Question 7

an element (definition)

Answer 7

any substance that cannot be decomposed into simpler substances by ordinary chemical processes

Question 8

a compound (definition)

Answer 8

a pure substance that can be broken down into elements. It is made of two or more atoms from different elements.

Question 9

a mixture (definiton)

Answer 9

A mixture is made when two or more substances are combined, but they are not combined chemically.

Question 10

balance this equation
aluminum oxide—–aluminum + oxygen

Answer 10

2Alsub2Osub3
4Al + 3Osub2

Question 11

writing chemical formulas
Psub5Osub4

Answer 11

pentaphosphorus tetraoxide